Effect of adding of humic and fulvic acid on the availability of N.P.K, in the soil and number, weight of the root nodules and yield of broad been (Vicia Faba L.)


A field experiment was conducted during the growing season of 2016 -20117, in Al-Muthanna province, to study N P K availability in soil, number and weight of root nodules and yield broad bean by adding HA and FA acid to soil. A simple experiment designed by using RCBD method included adding HA and FA acid (0, 5 ,10 ,15ml ha-1). Significant increases in N P K availabilities were accompainied with H2 treatment for N and K 32.76, 204ml.kg-1 sequentially.  H3 gave the highest rate of N.P.K. availabilities 28.62 ,14.30 , 155 ml kg-1 s, respectively. H3 gave highest nodule fresh weights 616.00 mg. Besides the highest rate of plant yield 169g, and 134.8g, as compared to control.

Alaa Khudher Jbara, Directorate of Agricultural Extension & Training

        Turki Meften Saad, Agric. College, Al-Muthanna Univ.

      Rahem Alwan Haluel, Agric. College, Al-Muthanna Univ.



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